Charles morrill



(No Mdel.)

4C. MORRIL L.

CUTTING PLIBRS.

N0. 555,108. Patented Feb'. 25, 1896.

Fig l.

ANDREW EGRAHAM. PHQ'BUWUAWASHIHFIDMEC.

llNiTnn STATES CIL\RLES MORRILII,

OF NET YORK, N. Y.

CUTTING-PLIERS.

SPECIFICATION forming part of Letters Patent No. 555,108, dated February25, 1896.

Application filed March 4, 1895.

To @ZZ wh'om/ 272 71u03/ concern:

Be it known that I, CHARLES Moneum, a citizen of the United States ofAmerica, and a resident of the city, county, and State of New York, haveinvented a new and useful Improvement in Cutting-Pliers, of which thefollowing is a specification.

)Iy invention relates to cuttin g-pliers adapted for cutting wire orribbon sheet metal, all of which will be fully described hereinafter.

)Iy invention consists of certain mechanical combinations forming acomplete and novel cutting-pliers, all of which will be pointed out inthe claims and fully described hereinafter.

In the drawings, Figure l represents a side elevation of thecutting-pliers. Fig. 2 represents a vertical section taken on the line YY of Fig. 3, the latter of which is a plan W'ew of Fig. l. Fig. a is afront elevation, in which view is shown the interchangeablecuttingblades and the manner in which they are held in position. Fig. 5is a transverse vertical section taken on line X X of Fig. l. In thisview is shown the construction of the fulcrumpin of the lever-handle.

Similar numerals refer to similar parts throughout the drawings, inwhich- The numeral 6 represents the upper vertically-moving cuttingjawhaving integral therewith two depending` hangers '7. The lower endsthereof are fulcrumed to the leverhandle 7', the latter of which isprovided with an eccentric enlargement 8, a portion of the outer contourof which works in frictional contact with a planed surface 0 integralwith the stock of the lower vertically-cutting jaw, l0, the latter ofwhich is held in position by and between the hangers 7 and is operatedupon by the eccentric enlargement S of the lever-handle 7', the latterof which is fulcrumed to the hangers 7 by means of the fulcrum-pin ll,which is composed of a screw l2 adapted to fit a corresponding sleeve13, the latter of which forms, as it does, the fulcrumed bearing. Theinterchangeable cutting-blades I3 are held in their respectivecutting-jaws by means of screws. The upper vertically-movable cuttin g-jaw is tapped and adapted to receive the adjusting-screw l-i, which isencircled by the helical spring 15,

Serial No. 540,404'. (No model.)

the latter of which is housed in the cylindrical opening 16.

A very important feature of the construction of the pliers is that ofhaving a projecting tongue 17 integral with the stock of the lowervertically-moving jaw and adapted to engage with a corresponding groove18 made in the stock of the upper vertically-moving cutting-j aw. Itwill be obvious that this last feature will prevent the cutting-edges ofthe pliers from being sprung out of their horizontal alignment by anyundue strain brought to bear upon them near their outer ends.

It will be obvious that when the handles of the pliers are compressedthe eccentric enlargement of the handle will force the lower cutting-jawupward in a vertical line, and by means of the fulcrum force the uppercuttingjaw down correspondingly. Both jaws will move with the samespeed, distance, and exert the same power upon the wire or metal beingcut. It will also be obvious that whenever the interchangeablecutting-blades are to be ground their width will be reduced, thuspreventing their cutting-edges from approaching each other sufficientlyto sever the wire or metal operated upon. To obviate this dificulty Ihave provided the regulating device, which consists of the adjusting orregulating screw 14, which enters the screwtap of the upper cutting-jawand is encircled by a helical spring l5, which is held in position bymeans of the cylindrical bore made in the stool: of the upper and lowercutting-jaws. Said adjusting-screw maybe adjusted to suit the occasion,thus allowing the edges of the cutting-blades to assume their relativeposition one with the other. It will still further be obvious that whenthe pressure upon the handles is removed the retraction of the helicalspring will force the jaws apart and to their normal position.

Having thus described my invention, what I claim as new, and desire tosecure byLetters Patent, is-

l. In a cutting-pliers, the combination of vertically-moving jaws, theverticallyarranged tongue integral with the stock of the lower jaw andguided in a groove of the upper jaw, the adjusting-screw passing throughthe stock of the upper jaw and the coiled IOO spring encircling saidscrew; the screw serving as a center guide for said spring.

2. The combination consisting of the upper` vertically-moving j aw andits hangers the lever-handle the eccentric enlargement thereon thescrew-pin and sleeve forming a fulcruln for said lever-handle, the lowercutting-jaw lO the latter adapted to operate between said hangers, theinterchangeable cutting-blades, the adjusting or regulating screwpassing through the stock of the upper cutting-jaw,

the helical spring encircling said zuiljusting-V In a cutting-pliers,the combination ofV the upper vertically-moving jaw and its hangers, thelever-handle, the eccentric enlargement thereon7 the screw-pin andsleeve for1ning a fulcruni for said lever-handle, the lower 2ocutting-jaw adapted to operate between said hangers, the interchangeablecutting-blades, the adjusting-screw passing through the stock of theupper cutting-jaw and the helical spring encircling saidadjusting-screw.

In testimony that l claim the foregoing as my invention l have signed myname, in presence of two witnesses, this lstrday of March, i805.

CHAS. MRRILL.

Yfitnesses T. A. ANDnRsoX, O. N. STEIN.

